pgsql: Replace pg_asprintf() with psprintf().

Replace pg_asprintf() with psprintf().

This eliminates an awkward coding pattern that's also unnecessarily
inconsistent with backend coding. psprintf() is now the thing to
use everywhere.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/2c66f9924c1162bfba27c77004ccf42fb6ea188d

Modified Files
--------------
contrib/oid2name/oid2name.c | 2 +-
contrib/pg_upgrade/check.c | 8 +++----
contrib/pg_upgrade/tablespace.c | 5 +++--
contrib/pg_upgrade/util.c | 2 +-
src/backend/utils/adt/format_type.c | 29 +++-----------------------
src/bin/initdb/initdb.c | 14 ++++++-------
src/bin/pg_ctl/pg_ctl.c | 6 +++---
src/bin/pg_dump/compress_io.c | 4 ++--
src/bin/pg_dump/pg_dump.c | 4 ++--
src/bin/psql/command.c | 16 +++++++-------
src/bin/psql/common.c | 4 ++--
src/bin/psql/copy.c | 2 +-
src/bin/psql/input.c | 2 +-
src/bin/psql/startup.c | 8 +++----
src/bin/psql/tab-complete.c | 5 +----
src/common/psprintf.c | 38 ----------------------------------
src/include/common/fe_memutils.h | 1 -
src/test/isolation/isolationtester.c | 4 ++--
src/test/regress/pg_regress.c | 28 ++++++++++++-------------
19 files changed, 57 insertions(+), 125 deletions(-)